A description is given of some of the features of the $50M rehabilitation project now in progress on San Francisco'S cable cars. Every section of track is being replaced by substantially founded reinforced concrete yoke supporting stiff heavy section flat bottomed girder rail. Preliminary calculations suggested that 24 blocks would need to be opened up at a time to get the job done so the work was split into six contracts which had the advantage of causing very competitive bidding. Radical changes are being made to the machines for driving the cables at their constant 14.5 m/hr. The new machinery is to have separate motors for each rope. New technology is expected to make the operation of the cars more reliable, but several new ideas that were tried demonstrated that the empirical solutions of the past were the best.

Media Info

  • Features: Photos;
  • Pagination: 3 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00381457
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Feb 29 1984 12:00AM